<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<style>
    input.ng-invalid {
        background-color: red;
    }
</style>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
    {{name}}
</div>

<script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>
<script>
    var app = angular.module("myApp",[]);
    app.controller("myCtrl",function($scope){
        $scope.name = "kkvv001";
    });
</script>
</body>
</html>